Combination thread protector and sucker rod stripper



Sam. 29, 1931. M. L.. REED 1,825,605

` COMBINATION THREAD PROTECTOR AND SUCKER ROD STRIPPNR Filed Nov. 5, 1930 2 Sheets-Sheet l NNN ' EL: INVENTQR ATTORNEY` Sept. 29, 1931. T M. L. REED 1,825,605

COMBINATION THREAD PROTECTOR AND SUCKER ROD STRIPPER Filed Nov. 5, 1930 2 Sheets-Sheet 2 ATTORNEY Patented Sept. 29, 1931 PATENT orifice l MARTIN L. REED, OF WILSON', OKLAHOMA vCOMBINATION THREAD PROTECTOR ANDSUCKER ROD SYTRIPPER Application filed November 5, 1830; Serial No. 493,670.

My present invention has reference to a new and novel device to be arranged Vupon the upper or outlet end of an oil well casing and which embodies elements or parts that will effectively wipe the sucker rod to strip the oil therefrom and to prevent the same from splashing over the rig floor, thereby keeping the Hoor clean and likewise saving oil, and for preventing the stripping or Inutilation of the threads of the casing by affording a meansv for permitting the driving of the casing without contact with the threads'thereof. p

The primary object of the invention is the provision of a means for this purpose which shall be of a simple construction, easily and quickly applied and as readily removed from the outlet end or head of the casing and which shall be thoroughly efiicient in practical use. I

VThe invention will be fully and comprehensively understood from a consideration of the following detailed description when read in connection with the accompanying drawings which form part of the application, with the understanding, however, that the improvementl iscapable ofextended application and is not confined to the exact showing of the drawings nor to the precise construction described and, therefore, such changes and modifications may be ina-de therefrom as do not aect the spirit of the invention nor exceed the scope thereof as eX- pressed in the appended claims.

in theldrawings:

Figure 1 is a side elevation illustrating the application of the improvement.

Figure 2 is a similar View looking at right angles to Figure 1.

Figure 3 is a sectional view approximately on the line 3-3 of Figure 1.

Figure 4t is a transverse sectional view approximately on the line 4--4 of Figure 3.

Figure 5 is a similar sectional view apprcximately on the line 5 5 of Figure 3.

Referring now to the drawings in detail the numeral 1 designates the upper tubular section of a well casing. Screwed on this section 1 there is the longitudinal branch of a T-coupling 2. To the lateral branch of an opening.

the Tcoupling there is threaded the inner` end of the discharge pipe 3. The T-coupling has its outer edges and its ends provided with the usual annular enlargements or hubs 4.

In carrying out my invention .I arrange over the upper hub t of the longitudinal branch of the T-coupling the inner element ofV the improvement. This element. comprises two substantially semi-cylindrical cast ings. respectively. Thecastings, adjacent their lower ends, are formed with internal. notches 6 that receive therein the upper hub 4. of the T-coupling 2. The sections compris ing the member 'have at their confronting ends outstanding ears 7-7 and 8-8, respectively. The earsy 7 are arranged verticallyl and the ears 8 are arranged horizontally.. Preferably one of each pair of ears 7 and 8 is slotted and the other ear is provided with The opening in one of the ears 8 is threadedand there is received through the opening Vin the second ear 8 and screwed in the opening of the other ear a pivot bolt 9.v A washer 10 is interposed between the ears 8 and through which washer the pivo bolt passes.

There is passed through the opening in one of the vertical ears 7 .and received through the slot in the second ear 7 a boltr pending lug '15 formed on. its end with lat- Y eral extensions 16 to be received in'Y the hooks 18.'` Adjacent to the confronting' edgesl of the sections 14 and also arranged adjacent to the top of the said sections there are outlstanding ears 17 and passing through these ears there are somewhatelongated bolts 18 engaged by nuts 19. tol force? washers 20 againstr the ears on one ofthe sectionsof the member 14. A second washer 21 is forced against the ears on the second section 14 through the medium of helical springs 22 which surround the bolts and exert a pressure between the head of the said bolt 18 and the Washer 21. From the above it will be noted that the sections comprising the outer or top` members 14 of the head are removably connected to the lower section 5, and yieldably connected together by means which force the same toward each other and likewise the T-shaped lugs on the sections 14, engaging with the hooks 13 on the section 5 permit of a swinging of the outer head sections 14 on the inner head sections 5.

i IThe substantially conical outer member 14 has the sections thereof, from its outer and reduced end formed with a substantially conical pocket 23 in which is seated a conical or, cup-shaped compressible wiper member 24. The member, of course, comprises two sections, one being seated in the pocket of each of the sections of the top member 14 and the edges of the said wiper members project beyond the edges of the sections 14 and are held in the pocket by bolts 25 which are engaged by suitable nuts. The bolts pass through suitable openings in the sections 14 and are engaged by nuts whereby the rubber or like compressible washer members may be removed when worn and replaced by others. i

The upper element of the sucker rod 2G passes through the round opening at the center of the compressiblc member 24 that provides the wiper element of the improvement. With my improvement it will be noted that the sucker rod may be reciprocated and oil will be scraped therefrom by the compressible wiper or scraper element 24. A limited lateral movement of the upper section of the sucker rod is afforded by the yieldably connected sections that comprise the outer member 14. My construction may, of course, be successfully employed in connection with well boring systems as well as with pumps. When the outer cap member 14 is removed from the inner cap member thefiat outer face of the inner member 5 serves as a means for protecting the threads on the T-coupling and the threads on the outer casing section, in which instance the T-coupling, with the improvement unscrewed from the casing section 1 illustrated by the drawines is screwed on another section which is attached to the said section 1. It is thought the foregoing description when read vin connection with the accompanying drawings will fully set forth the construction and advantages of my improvement to those skilled in the art so that further detailed description will not be required. Having described the invention, I claim: 1. In a device for the purpose set forth, a well easing having a T-coupling in the outer section thereof, an inner head comprising two sections which are adjustably connected and which are fixed on the outer end of the T-coupling, an outer head section which is removably and swingabl secured to the inner head section and wiich also comprises two similar parts or sections, spring means for forcing the sections toward each other, adjusting means for said spring means and a com ressible washer pocketed in the outer hea section to engage with the sucker rod for the casing.

2. In a device for the purpose set forth, a well casing having a T-coupling screwed on the outer end thereof and the lateral branch of the T-coupling being connected with a discharge pipe, the ends of the coupling being formed with outstanding hubs, an inner head member having an annular groove to receive therein the outer hub, said head comprising two similar sections provided at their confronting ends with ears which are arranged at right angles with respect to each other, a pivot bolt passing through the horizontal ears, an adjusting bolt engaging the vertical ears.v depending hooks on thc sides of the inner head member at right angles to the ears, an outer substantially conical head member having T-shaped lugs on the sides` thereof to be received in the hooks, the outer member comprising two sections, provided with ears adjacent to the confronting ends thereof, bolts passing through the ears, nuts engaging the bolts, washers on the bolts, with one pair of which the nuts contact, coiled springs between the heads of the bolts and the second pairs of washers, said outer head member having a substantially conical pocket therein, comprising two sections, whose ends' project beyond the ends of the outer head member, a sectional coinpressible substantially cone-shaped wiper member seated in the pocket, removable means for holding the saidmember in the pocket, and the said wiper member having a central round opening through the top thereof whose walls contact with a sucker rod which is arranged in and passes through the casing and head.

In testimony whereof I aflix my signaturev MARTIN LA. REED. 

